Anastrozole (Arimidex) 1mg by Wockhardt is a non-steroidal oral drug. It is an aromatase inhibitor (AI). It is appropriately used when using substantial amounts of aromatizing steroids.
Mostly prescribed for Breast Cancer as what is known as an adjunct treatment. Bodybuilders use it for Bloating and Water Retention. Anastrozole can achieve a high degree of estrogen blockade much more than Cytadren.
Anastrozole mechanism of action is as an aromatase inhibitor, blocking conversion of aromatizable steroids to estrogen in contrast to the mechanism of action of anti-estrogens. It can reduce estrogen too much.
It has the ability to eliminate rising Estrogen levels. By disabling the aromatase enzyme, supraphysiological levels of aromatizable androgens (such as Testosterone, Dianabol, Boldenone, etc.) cannot convert into Estrogen, thereby eliminating any possible risk of Estrogen-related side effects. Thus, bodybuilders and athletes usually favour aromatase inhibitors like this.